Galactokinase activity in patients with idiopathic presenile and senile cataract.

The activity of galactokinase in red blood cells of 30 patients affected by idiophatic presenile and senile cataract, and of 20 age-matched controls with perfectly transparent lenses, was investigated. The results obtained show a partial deficiency of the galactokinase activity in the patients affected by presenile idiopathic cataract. There is, moreover, a significant relationship between the cortical form of cataract and enzymatic reduction.